Evaluation and Rating of Bridges

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Course Number: V15T_20

The need for bridge evaluation and rating is discussed.  AASHTO legal load types are presented.  The definition of a rating factor is introduced.  Three methods included in the AASHTO Manual for Condition Evaluation of Bridges are presented.  They include rating based on allowable stress method, Load Factor Design (LFD) method and Load and Resistance Factor Rating (LRFR) method.   The rating procedure is demonstrated for a steel girder bridge, a prestressed concrete girder bridge.   In addition, the rating procedure is demonstrated for a partially damaged prestressed concrete girder bridge.

“Evaluation and Rating of Bridges” is the last of the four courses in the Bridge Design and Evaluation series.  The series objective is to present the approach to design and evaluation of highway bridges.   The design is based on the AASHTO LRFD Code and evaluation on the AASHTO Manual for Condition Evaluation of Bridges.  The presentation includes the design philosophy, procedures and practical examples.


This series is addressed to engineers interested in bridge engineering.  In particular, those interested in application of the new LRFD code that is based in limit states.  A basic knowledge of design of reinforced concrete, prestressed concrete and steel structures is needed.  It is recommended that the courses are taken in order:

 Bridge Design and Evaluation series:

Course Length: 2 Hours, ( 0. 2CEUs or 2PDHs or 2CPCs )

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